../ dmsp_15_ephemeris_20160414.txt 22-Jun-2023 00:31 109560 dmsp_16_ephemeris_20160414.txt 22-Jun-2023 00:31 109639 dmsp_17_ephemeris_20160414.txt 22-Jun-2023 00:31 109700 dmsp_18_ephemeris_20160414.txt 22-Jun-2023 00:31 109723 dmsp_19_ephemeris_20160414.txt 22-Jun-2023 00:31 109660